Stockholders' Equity - Summary of Stock Options Outstanding (Detail) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number outstanding (in shares)	9,612,761
Aggregate Intrinsic Value	$ 520	$ 2,831
$1.00 – 5.00
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of exercise prices, minimum (in dollars per share)	$ 1.00
Range of exercise prices, maximum (in dollars per share)	$ 5.00
Number outstanding (in shares)	7,367,252
Weighted Average Remaining Contractual Life (Years)	8 years 1 month 24 days
Weighted average exercise price (in dollars per share)	$ 3.82
$5.01 – 10.00
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of exercise prices, minimum (in dollars per share)	5.01
Range of exercise prices, maximum (in dollars per share)	$ 10.00
Number outstanding (in shares)	2,194,085
Weighted Average Remaining Contractual Life (Years)	7 years 6 months 21 days
Weighted average exercise price (in dollars per share)	$ 5.95
$10.01 – 15.00
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of exercise prices, minimum (in dollars per share)	10.01
Range of exercise prices, maximum (in dollars per share)	$ 15.00
Number outstanding (in shares)	29,924
Weighted Average Remaining Contractual Life (Years)	3 years 1 month 20 days
Weighted average exercise price (in dollars per share)	$ 13.09
$15.01 – 20.00
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of exercise prices, minimum (in dollars per share)	15.01
Range of exercise prices, maximum (in dollars per share)	$ 20.00
Number outstanding (in shares)	21,500
Weighted Average Remaining Contractual Life (Years)	2 years 9 months
Weighted average exercise price (in dollars per share)	$ 16.47